Explain how alveoli are adapted to perform efficient gas exchange.
One cell thick - short diffusion distanceLarge surface area to volume ratio - enables efficient diffusionGood ventilation of air in alveoli - enables constant concentration gradientGood capillary blood supply around alveoli - enables constant concentration gradient
JT
Related Biology GCSE answers
All answers ▸Describe the structure of a typical animal cell and explain the functions of its components. How does this compare to the structure of a plant cell?
what is osmosis and give an example?
What is an enzyme?
How many nucleotides code for an amino acid in protein synthesis?